1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga2289 [7]
3 years ago
5

Only small amounts of ATP are stored in the body's cells. ATP is hydrolyzed and converted from ATP to ADP anaerobically. The enz

yme ATPase hydrolyzes the first phosphate group from the ATP molecule when energy is needed. About seven kilocalories are released every time a phosphate bond is broken.
Chemistry
1 answer:
astra-53 [7]3 years ago
6 0

Answer:

Option (C).

Explanation:

ATP is the energy currency of the cell that are directly used by the cell. ATP helps in the contraction of muscles, propagation of the nerve impulse and in the chemical synthesis of the molecules.

The ATPase enzyme is required for the hydrolysis of the ATP molecule. The ATPase hydrolyzes the third phosphate group and not the first phosphate group when the energy is needed. The gamma or third phosphate first removed during ATP hydrolysis.

Thus, the correct answer is option (C).

You might be interested in
A sealed helium balloon with an internal pressure of 1.00 atm and a volume of 4.50 L at 293 K is moved. What volume will the bal
bixtya [17]

Answer:

6.48 L

Explanation:

From the question,

Applying

PV/T = P'V'/T'......................... Equation 1

P = initial pressure of the helium balloon, V =  Initial volume of the balloon, T = Initial temperature of the balloon, P' = Final pressure of the balloon, T' = Final temperature of the balloon, V' = Final volume of the balloon.

make V' the subject of the equation

V' = PVT'/P'T......................... Equation 2

Given: P = 1 atm, V = 4.5 L, T' = 253 K, T= 293 K, P' = 0.6 atm

Substitute these values into equation 2

V' = (4.5×1×253)/(0.6×293)

V' = 1138.5/175.8

V' = 6.48 L

8 0
3 years ago
"How much NH4Cl, when present in 2.00 liters of 0.200 M ammonia, will give a solution with pH = 8.20? For NH3, Kb = 1.8 x 10-5"
Andru [333]

Answer:

245.66g of NH₄Cl is the mass we need to add to obtain the desire pH

Explanation:

The mixture of NH3/NH4Cl produce a buffer. We can find the pH of a buffer using H-H equation:

pH = pKa + log [A⁻] / [HA]

<em>Where [A⁻] is the molar concentration of the base, NH₃, and [HA] molar concentration of the acid, NH₄⁺. This molar concentration can be taken as the moles of each chemical</em>

<em />

First, we need to find pKa of NH₃ using Kb. Then, the moles of NH₃ and finally replace these values in H-H equation to solve moles of NH₄Cl we need to obtain the desire pH.

  • <em>pKa NH₃/NH₄⁺</em>

pKb = - log Kb

pKb = -log 1.8x10⁻⁵ = <em>4.74</em>

pKa = 14 - pKb

pKa = 14 - 4.74

pKa = 9.26

  • <em>Moles NH₃</em>

<em>2.00L ₓ (0.200mol NH₃ / L) = 0.400 moles NH₃</em>

  • <em>H-H equation:</em>

pH = pKa + log [NH₃] / [NH₄Cl]

8.20 = 9.26 + log [0.400 moles] / [NH₄Cl]

-1.06 =  log [0.400 moles] / [NH₄Cl]

0.0087 =  [0.400 moles] / [NH₄Cl]

[NH₄Cl] = 0.400 moles / 0.0087

[NH₄Cl] = 4.59 moles of NH₄Cl we need to add to original solution to obtain a pH of 8.20. In grams (Using molar mass NH₄Cl=53.491g/mol):

4.59 moles NH₄Cl ₓ (53.491g / mol) =

<h3>245.66g of NH₄Cl is the mass we need to add to obtain the desire pH</h3>

<em />

3 0
3 years ago
Which is best represented by the equation?
sergeinik [125]
A- law of conservation of energy
3 0
3 years ago
How many sulfur atoms are there in 3.90 mol of sulfur?
Ilya [14]
 <span>In a mole of anything, there are 6.023 x 10^23 units. So, in 3.9 moles of sulfur, there are 3.9 * 6.023 x 10^23 = 23 x 10^23 = 2.3 x 10^24 atoms (keeping only 2 sig figs).  Hope I help!!
</span>
6 0
3 years ago
The polymerization of amino acids produces:
Delicious77 [7]

Answer:

Proteins

Explanation:

Polymerization, in chemistry, is the chemical combination of monomeric units to form a polymer. Polymers are large molecules made up of smaller units called monomers. Amino acids are the monomeric units of proteins i.e. A protein is made up of of many amino acids joined together.

Therefore, the chemical combination of amino acids will form a peptide bond between the carbon atom of the acid group and nitrogen atom of the amine group in the structure of the amino acids. This is done by the loss of a water molecule. The continuous repetition of this polymerization process will form a chain called polypeptide, which is the PROTEIN.

8 0
3 years ago
Other questions:
  • Which cannot be separated into similar substances? Compound,element,solution ormixture
    5·1 answer
  • How many grams are there in 7.4 x 1023 molecules of H2SO4?
    11·1 answer
  • Thallium consists of 29.5%TI-203 and 70.5%TI-205. What is the relative atomic mass of thallium? 203am
    15·1 answer
  • 8! How many moles are in 73410" molecules of KMO,
    13·1 answer
  • The mass of a watch glass was measured four times. The masses were
    9·2 answers
  • Which common item is made
    8·1 answer
  • Is this the correct formula for magnesium acetate? Mg(C2H3O)2
    9·1 answer
  • El mercurio en oro es una solución de.
    12·1 answer
  • 1. When water is evaporated from a copper sulfate solution, copper sulfate remain.​
    13·1 answer
  • f the electron configuration of Li is 2,1 and the electron configuration of Na is 2,8,1, what is the electron configuration of K
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!